Device for operating dampers of furnaces or stoves



Patented May 23, I899:

r. A. MAGEE. DEVICE. FOR OPERATING DAMPERS 0F FURNACES 0R STOVES.

(Application filed Feb. 27, 1897.)

3 Sheets-Sheet I.

(N0 Model.)

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No. 625,578. Patented May 23, 1899.

F. A. MAG-EE.

DEVICE FOR OPERATING DAMPEBS 0F FURNACES 0R STOVE S.

(Applicatinn filed Feb. 27,1897.) (No Model.) 3 -Sheets-Sheek 2.

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Patented May 23, I899.

F. A. MAGEE. DEVICE FOR OPERATING DAMPERS 0F FURNACES 0R S TOVESL (Application flled Feb. 27, 1897.)

3 Sheets-Sheet 3.

(No Model.)

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UNITED STATES PATENT OFFICE.

FRANK A. MAGEE, OF WEN'HAM, MASSACHUSETTS, ASSIGNOR TO THE MAGEE FURNACE COMPANY, OF BOSTON, MASSACHUSETTS.

DEVICE FOR OPERATING DAMPERS OF FURNACES OR STOVES.

SPECIFICATION forming part of Letters Patent No. 625,578, dated May 23, 1899. Application filed February 27, 1897. Serial No. 625,298. Qlo model.)

T0 at whom it may concern:

Be it known that I, FRANK A. MAGEE, a citi= zen of the United States, residing at Wenham, in the county of Essex and State of Massachusetts, have invented a new and useful Improvelnent in Devices for Operating the Dampers of Furnaces 0r Stoves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

The invention consists in the herein-described means for turning or operating a damper in the direct smoke escape or passage of a furnace or stove from the front of the stove and, when desired, in connection with the opening and closing of the door to the combustion-chamber.

In the drawings, Figure 1 is a View in horizontal section upon the dotted line 2 2 of Fig. 2 and in plan of parts below said line. Fig. 2 is a view in side elevation of a furnace equipped with my improvement, a portion of the casing of the furnace being broken out to represent the direct and indirect fines therein. Fig. 3 is a view in front elevation of the upper portion of a furnace having my improvement;

. and Fig. 4 is an enlarged view, in horizontal section, upon the dotted line 4 4 of Fig. 3. V

The pipe A contains the direct passage a from the combustion-chamber of the furnace.

In it is a damper B, mounted upon a pivot the furnace on both sides to the slide-plate c at the front, the ends of the rope being attached to lugs or ears 0 0 respectively, by adjustable eyes 0 0 respectively, the eyes extending through the lugs and having threaded ends, upon which holding-nuts are screwed and by means of which any slack in the cord or chain may be taken up.

The slide cis contained in a guideway o in the door-casing 0 supporting the door D to the combustion-chamber, the slide being mov able horizontally in said guideway and being held therein by means of a stud 0 which extends from the slide-plate through the slot 0 in the casing, the inner end of which is threaded and carries a washer a large enough to span the said slot and heldagainst the inner surface of the plate by a nut 0 The outer end of the stud carries the operatinghandle o The movement of this plate in oneldirection or the other will cause the cord or chain to be moved in the same direction, thereby turning the wheel upon the damperspindle and causing the damper to be turned to open or close the direct passage. This slide-plate is connected with the combustionchamber door D by means of a link E, having a hole 6 and a pin d, extending upward from the door near its hinged end, which enters said hole. The link is pivoted at e to an ear 6 extending outward from the slide-plate, and upon the opening of the combustionchamber door the slide is moved in a direction to cause the cord or chain to turn or open the damper, and upon the closing of the door the slide is moved in an opposite direction,

thereby causing the cord to close the damper.

The damper may be opened or closed independently of the movement of the combustion-chamber door, and the link is then provided with a long slot 6 in extension of the hole e, which receives the pin 01, and which permits the link to be moved upon the pin with the movement of the slideplate and while the pin is at rest; The pin will, however, always serve to open and close the damper upon the opening and closing of the combustion-chamber doorif the damperbe closed.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States 1. In a heating "stove or furnace the combination of the main escape-port, a damper therein, an operating cord or chain connected with the damper as specified, a slide-plate having a link provided with a slot 6 and a pinholding recess at one end of said slot, with the door to the combustion-chamber and its pin (1 engaging said link as specified.

2. The combination in a heating stove or furnace of the main escape port, a damper therein, an operating cord or chain connected with the damper and extending about the furnace to a slide-plate, the said slide-plate contained in a recess in the casing of the combustion-chamber door having lugs c, c to which the ends of said rope or chain are connected, and a plate-holding stud c carrying a handle 0 and movable in the slot 0 3. In a heating stove or furnace the combination of the main escape-port, a damper therein, the damper-spindle, a turning cord or chain connected with the damper-spindle and extending forward to a slide-plate to which they are attached, the said slide-plate mounted upon the furnace-casing, the door to the combustion-chamber and means connecting the door to the slide-plate adapted upon the opening and closing of the door to move the plate and open and close the damper, which connecting means are adapted to be disengaged from the door to permit the opening and closing of the damper independently of the door.

FRANK A. MAGEE.

Witnesses:

' F. F. RAYMOND, 2d,

J. M. DOLAN. 

